diff options
| author | Damien Lespiau <damien.lespiau@intel.com> | 2015-07-16 19:08:08 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-07-17 10:07:47 +0300 |
| commit | edd43ed8cebafd29cc24e4798cdf0412c668e644 (patch) | |
| tree | 56730ef24cdfbd81069816099a8afc2f7253dbc8 /drivers/gpu/drm | |
| parent | 661abfc028886eb1c6b5b9dbc433ef8cfb11217d (diff) | |
| download | linux-edd43ed8cebafd29cc24e4798cdf0412c668e644.tar.xz | |
drm/i915/skl: Don't expose the top most plane on gen9 display
on SKL/BXT, the top most plane hardware is shared between the legacy
cursor registers and an actual plane. Daniel and Ville don't want to
expose 2 DRM planes and would rather expose a CURSOR plane that has all
the usual plane properties, and that's a blocker for lifting the
prelimary_hw_support flag.
Unfortunately noone has had the time to finish this yet, but lifting the
prelimary_hw_support flag is long overdue. As an intermediate solution
we can merely not expose the top most plane
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 5e63076cc769..b1f9e5561cf2 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -726,11 +726,19 @@ static void intel_device_info_runtime_init(struct drm_device *dev) info = (struct intel_device_info *)&dev_priv->info; + /* + * Skylake and Broxton currently don't expose the topmost plane as its + * use is exclusive with the legacy cursor and we only want to expose + * one of those, not both. Until we can safely expose the topmost plane + * as a DRM_PLANE_TYPE_CURSOR with all the features exposed/supported, + * we don't expose the topmost plane at all to prevent ABI breakage + * down the line. + */ if (IS_BROXTON(dev)) { - info->num_sprites[PIPE_A] = 3; - info->num_sprites[PIPE_B] = 3; - info->num_sprites[PIPE_C] = 2; - } else if (IS_VALLEYVIEW(dev) || INTEL_INFO(dev)->gen == 9) + info->num_sprites[PIPE_A] = 2; + info->num_sprites[PIPE_B] = 2; + info->num_sprites[PIPE_C] = 1; + } else if (IS_VALLEYVIEW(dev)) for_each_pipe(dev_priv, pipe) info->num_sprites[pipe] = 2; else |